mirrors/z3
3
0
Fork 0
mirror of https://github.com/Z3Prover/z3 synced 2025-08-11 21:50:52 +00:00
Code Activity

fix #2416

Browse source 
Signed-off-by: Nikolaj Bjorner <nbjorner@microsoft.com>
This commit is contained in:
Nikolaj Bjorner 2019-07-23 19:01:40 -07:00
parent c2264c73f2
commit 185b01dd35
6 changed files with 18 additions and 46 deletions
Download patch file Download diff file Expand all files Collapse all files

40
src/sat/tactic/goal2sat.cpp
View file

@ -1002,43 +1002,11 @@ void sat2goal::mc::get_units(obj_map<expr, bool>& units) {
}
void sat2goal::mc::operator()(sat::model& md) {
m_smc(md);
}
void sat2goal::mc::operator()(model_ref & md) {
model_evaluator ev(*md);
ev.set_model_completion(false);
// create a SAT model using md
sat::model sat_md;
expr_ref val(m);
for (expr * atom : m_var2expr) {
if (!atom) {
sat_md.push_back(l_undef);
continue;
}
ev(atom, val);
if (m.is_true(val))
sat_md.push_back(l_true);
else if (m.is_false(val))
sat_md.push_back(l_false);
else
sat_md.push_back(l_undef);
}
// apply SAT model converter
m_smc(sat_md);
// register value of non-auxiliary boolean variables back into md
unsigned sz = m_var2expr.size();
for (sat::bool_var v = 0; v < sz; v++) {
app * atom = m_var2expr.get(v);
if (atom && is_uninterp_const(atom)) {
func_decl * d = atom->get_decl();
lbool new_val = sat_md[v];
if (new_val == l_true)
md->register_decl(d, m.mk_true());
else if (new_val == l_false)
md->register_decl(d, m.mk_false());
}
}
// apply externalized model converter
if (m_gmc) (*m_gmc)(md);
TRACE("sat_mc", tout << "after sat_mc\n"; model_v2_pp(tout, *md););

5
src/sat/tactic/goal2sat.h
View file

@ -79,7 +79,7 @@ public:
ast_manager& m;
sat::model_converter m_smc;
generic_model_converter_ref m_gmc;
app_ref_vector m_var2expr;
app_ref_vector m_var2expr;
// flushes from m_smc to m_gmc;
void flush_gmc();
@ -88,7 +88,8 @@ public:
mc(ast_manager& m);
~mc() override {}
// flush model converter from SAT solver to this structure.
void flush_smc(sat::solver_core& s, atom2bool_var const& map);
void flush_smc(sat::solver_core& s, atom2bool_var const& map);
void operator()(sat::model& m);
void operator()(model_ref& md) override;
void operator()(expr_ref& fml) override;
model_converter* translate(ast_translation& translator) override;